Disinfecting apparatus.



W. H. TIBBALS.

DISINFECTING APPARATUS.

4APPLICATION FILED MAYI. 1914.

'Patented Feb; 6, 1917.

%/I/vvfflvrbn HTroR/VEM W/'r SJ'ES f A l u WALTER H. TIBIBAIS,l OF SYRACUSE, NEW YORK.

DISINFECTING APPARATUS.

To all whom t may concern.'

Be' it known that I, WALTER H.A TIBBALS, of Syracuse, in the county of Onondaga, in in the State of New York, have invented new and useful Improvements .in Disinfecting Apparatus, of which the following,

' taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention relates to certain improvements in d isinfecting apparatus involving f the use of a container for a Vgerm or vermin same passage by which theliquid is per-l destroying liquid and air under abnormal pressure and a pump extending into the container and operable at will .for producing and maintainmg any degreeof pressure desired.

One of the objects is to provide means lwhereby the confined liquid may be placed under abnormal pressure through the mitted to. escape, either from an external source of air compression or through themedium of the pump.

Another object is to enable the liquid to be discharged at -regularor irregular intervals or in a continuous stream as the op-Y erator may elect or according to the clon-` ditions to be treated. i t

A further object is to make the piston rod hollow or tubular and to utilize the opening therethrough as a delivery passage for the opening rom its inner end in which is sef liquid.`

A still further .object is to control communication between the interior of. the

chamber and piston rod through the me- Y dium of a self-closing check valve normally preventing the passage of the liquid from the interior of the .container into the tube.

Another object is to provide means actuated by the piston rod or piston when moved to a certain position for opening .said valve and to place the piston rod under spring tension so that it will return from such`position when released to allow the valve to close. I

A further object is to provide means for 4holding the piston rod and piston in' the position referred to for holding'thevalve open when it is desired to discharge the liquid in a continuous stream. f

Other ob'ects and'uses relating to specific parts of the apparatus willbe brought/out in the following description.

In the drawings--- Figure 1 is a. central vertical 'sectional ASpeeication of Letters Patent.

Patented Feb. 6, 1917.

Application sieanay 7, .1914. serial No. s31,oee.

certain positions for opening 4the check Valve and permitting it to close. 4 is ahorizontal sectional view Fig. through the lower end of the pump Itaken in line 4 4, Fig. 2.

Fig. 5 is a perspectlve view of the inner" end' of the piston rod.

The .apparatus 'shown comprises a cylindrical container -1- ihaving end heads -2- and -3- secured thereto in such manner -vas to form air and liquid tight joints capable of withstanding the pressure under which the liquid as a is confined. The head '-3- 'is provided with a ceni 'tral hollow bushing 4- irmly securedin place to form an air vand liquid tight joint and threaded internally for receiving a` screw cap -5- having wings -6-' by which it may be secured in place, with sufcient' firmness to prevent leakage of'air or li uid at the screw joint.

his ca is provided with a centralsocket f cured by brazing, soldering or other air-` and water-tight connections ya pump cylinder -7- having its opposite end extending to a;

A checkvalve .-9- is located in the pas'-V sageway -8- and is normally closed by a spring 10- to cut of communicationbetween the interior of the pump cylinder and container.

VWithin the pump cylinder is movable a piston '-11.- having a tubular piston rod -12- extending outwardly through a gland -13-' in the cap -5-, the inner end of the piston rod being extended beyond the piston medium of the passage -8- when the valve sol loo`

Themeans for opening the valve consists of a stem -15- on the lower end of the plston rod -12- and of such size as to enter ypiston rod and piston in two diferent positions at different distances from the seat of` the valve -9, the locking means for the innermost position serving to hold the valve open, as for example, in projecting a continuous stream from the ,discharge nozzle hereinafter described, while the other locking means serves to prevent outward movement ofthe piston from that position and at the same -time permitting the valve to close and allowing the piston lto be moved inwardly in limited distance to intermittingly open the valve against the action of a retracting spring -16- surrounding the outer end of the piston rod as shown more clearly in Fig. 1. i

For this purpose, the inner end of the piston rod adjacent the stem 7 15- is provided with laterally'projecting lugs or shoulders .17'- at diametrically opposite sides of the axis of the piston rod for interlocking yengagement with separate sides 'of diametrically opposite segmental flanges -18- and 19- projecting inwardly from the inner end of the pump cylinder at different distances from the seat of the valve -9- between such valve seat and the piston --11-, the flanges of one set being disposed at right angles to those of the other set.

In other words, the flanges -18- on the outer set farthest from the seat of the valve -9- are diametrically opposite each other and spaced apart a certain distance to re ceive the lugs -17- between them when turned at right angles thereto, thus permitting the lugs to be brought into interlocking engagement with the under sides of the flanges by moving the piston rod and piston inwardly and then turning to such position that the lugs -17- will be registered with the space below the flanges-.18- 'and by then turning the piston rod and piston a quarter turn more or less until the said lugs ride under said flanges, thereby holding the pistonrod and piston against` outward movement bythe retracting spring -16- whlch is then under compression, it being understood that the distance between the,-

to close'.

' The inner iianges -Y'19-- are spaced apart from the outer: flanges a sulicient distance to directed as required in a manner presently Y engage and open the valve -9-, thereby 'establishing direct communication between y the interior of the container -1- and tubular piston rod -12- to allow the liquid to pass from the container through the passage -8- and branch openings -H- and thence through the tubular piston rod to the exterior of the container where it may be` described. Secured to the outer end of the pistonv rod 1s a cross rod -20- serving the triple purpose of a handle, a valve casev and -a discharge nozzle, and for this purpose is previded with a central, though relatively small, delivery passage -'21- leading from a central valve chamber -22- through one end of the handle 20- said valve chamber communicating with the interior of the adjacent end of the piston rod l2- 95 The inner end of the relatively small passage -21- adjacent the valve chamber -22- is provided with a valve seat for a needle valve -23- which is screwed in the Y opposite end of the handle and provided with a hand-piece n-24eby which the needle valve may be opened and -closed at the will of the operator. Y

Th'e spring -1G- is interposed between the outer end of the cap -5- and inner face 105 of the handle -20- on the outer end ofthe i piston rod and is relatively short asv compared with the length of the piston rod but of sufficient length to be placed under compression when the lugs -17- on the inner 110 end of the piston rod are intel-locked with veither the flanges '-18- or 19- so that,

pansive force of the spring.`

The object of the outer set of locking fianges-lS-is to hold the stem on the inner lend of the piston rod in 'relatively 120 close proximity to the normally closed `valve -9- so that when the needle valve -23- is opened, the valve 9- will be normally closed and prevent the passage of the'liquid from the containerinto the tubular piston.125

rod and at the same time permitting the piston rod -to be moved'inwardly by pressure of the hand upon the handle -20- against the action 'of the spring 16- 4sufiicient to cause thel stem 15- to open the valve 130 ject a continuous stream without furtherattention from the operator, he may push the piston rod inwardly a suflicient distance to bring the lugs -17- beneath the flanges -19- and then turn the piston rod a quarter turn to interlock said lugs with said flanges, in which position, the stem 15,- will engage and hold the valve -9- open and permit the operator to control the exit of the liquid through the passage 21- voluntarily by means of the needle valve -23- by which the liquid may be dis-- charged in the form of a stream or spray according to the adjustment of the needley valve. A n

In filling the container with liquid, the

`cap --5- is unscrewed and the entire pump mechanism withdrawn therewith out of the container whereupon the disinfecting liquid may be introduced in any desired manner through the central opening in the head -3- until the container ijsapproximately two-thirds full, whereupon the pump and cap are re-inserted into the container and tightly secured in place to prevent leakage. Air lor other elastic fluid is then introduced under abnormal pressure into the remaining space in the container either by connecting` the delivery end of the handle 21d to an external source of compressed air and then opening the needle valve -23- to allow the compressed air to pass into the container through the passage -21-, tubular piston rod -20- and passage-.-8-, or this pressure may be produced by the operation of the pump by closing the needle valve 2S- and then operating the piston throughthe` medium of the handle 20- until the desired pressure is obtained, whereupon the piston rod may be forced inwardly to approximately the limit of the inward stroke, and its lugs -17-,- on the inner end thereof broughtinto interlocking engagement with the flanges 18 or -19-, thereby reducing to a minimum the space occupied by the entire apparatus and placing it in condition for immediate action to discharge the liquid in the manner previously described.

What I claim is:

1. In an apparatus of the characterdescribed, a container for liquid and air,a

pistonl pump having a cylinder extending from one end of the container to a point in proximity to its opposite end' and also having a tubular piston-rod in constantly open communication with the interior of the cylinder at a point beyond the inner end of the piston, said cylinder having a passage in-its inner end opening into the container, a selfclosing valve controlling such passage, means secured to the inner end ,of the tubular piston rod for opening said valve as the piston approaches the limit of its inward stroke for permitting the passage of the liquid through the tubular piston-rod, and means on the outer end of the tubular pistonrod for controlling the escape of the liquid therefrom.

2. In a device of the character described, the combination of a container, a. hand-operated piston pump extending thereinto and having an outlet in its handle, said pump having a piston rod provided with a valveless passage connecting the inlet and outlet, a valve in the handle controlling the outlet, a single self-'closing valve controlling the flow of liquidA from the container through the inlet' and into said passage, and means actuated by the piston .when moved to a 'certain position for opening the self-closing valve. f

3, In an apparatus of the class described, a container for liquid .and air, a pump cylinder secured in oneend of the container and extending to a point in proximit:1 to the opposite end and having its inner end provided with a passage communicating with the interior of the container, a selfclosing valve in said passage, a piston movable in the cylinder and provided with a tubular piston-rod extending through the outer end of the cylinder and container and having its inner end provided with an opening at the inner end ofthe piston and in constantly open communication with said passage and also provided with means rigid` thereon for opening the valve as the rod approaches the limit of its inward .movement to allow the liquid to pass out through the tubular rod, a handle on the outer end of the tubular rod having a discharge passage, and a valve in the handle controlling said discharge passage.

4. In a device of the character described,-

a container for liquid and air under pressure, a pump cylinder secured to one end of the container and extending to a point in proximity to the opposite end and having its inner end provided with a passage connecting the interior of the cylinder with the interior of the container, a self-closing valve in the passage, a piston and hollow pistonrod therefor having an opening at the inner end of the piston in constantly open commun1cat1on. w1th said passage, said piston-rod having its inner end provided with means I tive loclng devices on the inner ends of the for opening the valve when the rod `is at the limit of its-inward movement, coperapiston-rod andv cylinder, respectively, adapted to be brought into interlocking engagement witheach other by the turning of the rod for holding said rod in its innermost position and thereby holding the valve open, a handle on the outer end of therrod having a discharge passage, and a valve in the handle for controlling said discharge passage.l

5. In an apparatus of the class described,

a Huid container, a pump cylinder secured in one end of the container and extending to a point near the opposite end, said cylinder having its inner end provided with a passage opening rinto the interior of the container, a self-closing valve in said passage, a piston, a tubular piston rod extending through the outer end of the cylinder and communicating at all times with said passage at a point between the piston and valve,

means actuated by the piston rod when having a piston rod provided with a valveless passage connecting the inlet and outlet, a valve in the handle controlling the outlet,

i a single self-closing valve controlling the flow of liquid from the container through the inlet and into said passage, means actuated by the piston when moved to a certain position for opening the, self-closing valve, and means for locking the piston in such position to hold the last-named valve open.

7. In a device of the character described, the combination of a container, a hand-operated piston pump having an inlet passage within the container and an outlet passage external thereto, said pump having its piston rod provided with a lengthwise passage connecting the inlet and outlet passages, a check valve in the inlet passage, a manuallyoperated valve in the outlet passage, and

means actuated by the piston when moved to a certain position for opening the check valve.

-8. In a device of the character described,

the combination of-a container, a hand-oper- 4position for opening the check valve', and

means for ylocking the piston in such position to hold the check valve open.

" In witness whereof I have hereunto set imy hand this 28th day of April, 1914.

. WALTER H. TIBBALS.

Vlitness:y Y I-I. E.v CHASE. 

